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Mine Exploration Forum

Author Granite Quarries and Mines
Alasdair Neill

Joined: 10/12/2008

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Granite Quarries and Mines
Posted: 18/10/2014 09:24:06
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Further to the discussion re the Coed y Glyn Granite Mine, in 19thC commercial terms granite was used for lots of hard rocks which were definitely not granite in geological terms, even some hard sedimentary rocks (eg Ingleton Granite - actually a greywacke).
Re mining of igneous rocks, this is understandably unusual. There were underground mines working whin dykes (dolerite) in Co. Durham & North Yorkshire, and some working elvan in the Bissoe area of Cornwall after the First World War (some opened by the Wellington Brothers who also opened Mount Wellington Mine). In view of the abundance of elvan in Cornwall I can only assume these were looking for particularly good quality stuff for building or ornamental use.

Denbighshire was recorded as producing 137,971 tons of igneous rock from mines (as opposed to quarries) between 1898 and 1907, which probably came entirely from Coed y Glyn (Ceiriog). Would this be comparable to the extent of the workings shown on the plan?
IP: 193.39.4.10
deficit

Joined: 08/11/2017

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Granite Quarries and Mines
Posted: 13/01/2020 22:10:16
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I've done some diving in this quarry recently and have redrawn the old (illegible) abandonment plan and added some spot depths on the floods galleries. I'd like to upload this to Adit Now but i can't find an entry for this place though I'm sure there was one!! Can anyone else find it on here? Am I going mad? IP: 77.102.40.117
Morlock

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Joined: 31/07/2008

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Granite Quarries and Mines
Posted: 13/01/2020 22:51:53
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Is it anywhere near 'Cambian slate'?

Edit: Found it now!
IP: 81.155.163.75 Edited: 13/01/2020 23:57:03 by Morlock
The Fresh Prince of Portreath

Joined: 05/08/2015

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Granite Quarries and Mines
Posted: 14/01/2020 01:01:14
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RIP Ali Neill.

IP: 194.53.187.98
NewStuff

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Joined: 26/07/2010
Location: NE Wales

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Granite Quarries and Mines
Posted: 14/01/2020 17:33:37
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I can't find the entry. I have a colour Hi-res scan of the original plans if anyone wants it, and I'd love a copy of the spot heights.

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Searching for the ever elusive Underground Titty Bar. DDDWH CC
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